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Finding the Fourth Proportional to 5,257.35, 7,888.23 and 2,918.97

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Solution

The fourth proportional to 5,257.35, 7,888.23 and 2,918.97 is: 4,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.35 : 7,888.23 = 2,918.97 : x
  2. Step 2: Convert to fraction form
    5,257.35/7,888.23 = 2,918.97/x
  3. Step 3: Cross multiply
    5,257.35x = 7,888.23 × 2,918.97
  4. Step 4: Simplify right side
    5,257.35x = 23,025,506.72
  5. Step 5: Solve for x
    x = 23,025,506.72/5,257.35
  6. Step 6: Final answer
    x = 4,379.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.